The Core Problem of Environmentalism

The core issue is this - people don't see the connection between their actions and consequences. I do not see the water pollution caused by using antibiotics, toothpaste, caustic detergents and draino. If it directly affected me, I'd change.

Until they do, they will act as if there are no consequences, which is detrimental if the consequences are negative.

How do you make it so that the consequences are not invisible?
Don't subsidize them, for instance. Garbage disposal and treatment should not be free. Charge trash disposal by weight and recyclability, for example.